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Green Goliath

The Pacific Northwest is known for things that are BIG ' giant redwoods, sweeping coastlines and massive runs of salmon. But Zeb Hogan is looking for a goliath that's so elusive, he'll scour every nook and cranny of the rivers here to find it. He's after the green sturgeon ' a monster fish that can grow up to 7 feet long, live up to 70 years, and has been on Earth since the days of the dinosaurs.